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Finding the Fourth Proportional to 2,020.13, 3,030.19 and 652.13

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Solution

The fourth proportional to 2,020.13, 3,030.19 and 652.13 is: 978.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,020.13 : 3,030.19 = 652.13 : x
  2. Step 2: Convert to fraction form
    2,020.13/3,030.19 = 652.13/x
  3. Step 3: Cross multiply
    2,020.13x = 3,030.19 × 652.13
  4. Step 4: Simplify right side
    2,020.13x = 1,976,061.02
  5. Step 5: Solve for x
    x = 1,976,061.02/2,020.13
  6. Step 6: Final answer
    x = 978.19

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.